X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FExecutionEngine%2FJIT.h;fp=include%2Fllvm%2FExecutionEngine%2FJIT.h;h=8f17be1ece4addc23ff0b04490702e5d9f8508b4;hb=2f51914d828b462b054195e73c75448f24e01979;hp=0000000000000000000000000000000000000000;hpb=d1f04d40a078d6ca7c876b16a178992a109af774;p=oota-llvm.git diff --git a/include/llvm/ExecutionEngine/JIT.h b/include/llvm/ExecutionEngine/JIT.h new file mode 100644 index 00000000000..8f17be1ece4 --- /dev/null +++ b/include/llvm/ExecutionEngine/JIT.h @@ -0,0 +1,39 @@ +//===- ExecutionEngine.h - Abstract Execution Engine Interface --*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by Jeff Cohen and is distributed under the +// University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file forces the interpreter to link in on certain operating systems. +// (Windows). +// +//===----------------------------------------------------------------------===// + +#ifndef EXECUTION_ENGINE_JIT_H +#define EXECUTION_ENGINE_JIT_H + +#include "llvm/ExecutionEngine/ExecutionEngine.h" + +namespace llvm { + extern void LinkInJIT(); +} + +namespace { + struct ForceJITLinking { + ForceJITLinking() { + // We must reference the passes in such a way that compilers will not + // delete it all as dead code, even with whole program optimization, + // yet is effectively a NO-OP. As the compiler isn't smart enough + // to know that getenv() never returns -1, this will do the job. + if (std::getenv("bar") != (char*) -1) + return; + + llvm::LinkInJIT(); + } + } ForceJITLinking; +} + +#endif